day four, the same friend, rachel, returned to the witness stand and very different demeanor. challenged by the defense about inconsistencies in her testimony. and yesterday we heard from a neighbor who probably had the best view of the struggle between the two men. let's bring in former federal prosecutor doug burns. doug, quite a first week in any case. this one in particular. i want to start by playing a sou soundbite of trayvon martin's friend who said she heard him say certain things that she's only really telling us now. listen. >> i heard trayvon saying get off, get off. >> a letter on march 19. at month time did you mention that you heard ray votrayvon ma say get off, get off, get off. correct? is that yes, did you not say that? >> yes. >> lot of people say she mumbles. i don't know if that's an intentional strategy but what she said is -- for the first time, she's telling not in to the incident but much later get off, get off is what she said. she didn't put tonight a letter, she didn't tell to it investigators or trayvon martin's mother. at that point is should the d